1-(4'-Sulfophenyl)-3-carboxy-5-pyrazolone
- CAS No.118-47-8
- GradeIndustrial / Pharmaceutical
- Availability● In Stock
High purity dye intermediate used as a coupling component for organic synthetic pigments and specialized colorant formulations.
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Product Overview
1-(4'-Sulfophenyl)-3-carboxy-5-pyrazolone is a specialized organic chemical intermediate widely recognized for its critical role in the synthesis of azo dyes and pigments. This compound features a pyrazolone core substituted with a sulfophenyl group and a carboxylic acid moiety, providing unique reactivity profiles essential for coupling reactions. Our manufacturing process ensures high chemical stability and consistent performance across various industrial batches.
As a key building block in color chemistry, this substance facilitates the creation of vibrant and stable hues used in textiles, inks, and specialized coating applications. The presence of the sulfonic acid group enhances water solubility during the synthesis phase, while the carboxy group offers additional sites for chemical modification, making it a versatile choice for complex molecular architectures.
Technical Specifications
We adhere to strict quality control protocols to guarantee that every batch meets or exceeds industry standards for purity and physical properties. The following table outlines the key technical parameters for this chemical intermediate.
| Parameter | Specification |
|---|---|
| Chemical Name | 1-(4'-Sulfophenyl)-3-carboxy-5-pyrazolone |
| CAS Number | 118-47-8 |
| Molecular Formula | C10H8N2O6S |
| Molecular Weight | 284.25 g/mol |
| Appearance | Light yellow crystalline powder |
| Purity | ≥99.0% |
| Melting Point | 260-270°C (Decomposes) |
| Density | 1.75 g/cm3 |
| Refractive Index | 1.695 |
Industrial Applications
This pyrazolone derivative is primarily utilized as a coupling component in the production of organic synthetic dyes. Its chemical structure allows for efficient diazo coupling, resulting in pigments with excellent lightfastness and washing stability. Manufacturers in the colorant industry rely on this intermediate for developing high-performance pigments used in diverse sectors.
- Primary coupling agent for azo dye synthesis.
- Essential raw material for organic pigment varieties.
- Used in specialized ink formulations requiring high stability.
- Supports the production of textile colorants with superior bonding properties.
Quality Assurance and Storage
To maintain product integrity, we implement rigorous testing at every stage of production. Each shipment is accompanied by a Certificate of Analysis (COA) verifying purity and physical constants. Proper storage is crucial to prevent degradation. The product should be kept in a sealed container within a cool, dry environment, ideally at temperatures around -20°C for long-term stability. We offer flexible packaging options, including 25kg drums, to suit various logistical requirements for global distribution.
